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B. RICHARDSON. OF HAYDENSVILLE, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND THE HAYDEN MANUFACTURING CO., OF SAME PLACE.

MACHINERY FOR POLISHING THREAD.

Specification of Letters Patent No. 20,925, dated l'uIy 13, 1858-.

To all whom t may concern.'

Be it known that I, BRITTON RICHARDSON, of I-Iaydensville, in the county of Hampshire and State of Massachusetts, have invented a new and useful Improvement in Machinery for Dressing and Polishing Sewing-Thread and Yarng and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a longitudinal vertical section of a machine with my improvement. Fig. 2 is a transverse vertical section of the same.

Similar letters of reference denote like parts in the two figures.

This invention consists in a peculiar construction and arrangement of flannel-covered or felt-covered rollers for rubbing down the fibers of and polishing the thread or yarn after it has been sized.

To enable others skilled in the art to malte and use my invention I will proceed to describe its construction and operation.

A is the framing of the machine.

B, is a roller or reel from which the threads or yarns, as many as practicable, are supplied to be sized, dressed, and polished.

C, C, are the sizing rollers, of which the lower one rotates in atrough of size.

D, D, are the dressing and polishing rollers. arranged in pairs. These rollers consist each of a cylinder of wood or other material secured to a suitable shaft, and having secured to its periphery at equal distances apart and parallel with the axis a number of rounded ribs or feathers a, a; and having strained upon it, round the exterior of these ribs or feathers a piece d, of fiannel or felt. or other suitable fabric of similar character. Each pair of these rollers are geared together by gears b, in such a manner that the y\ work with the ribs a, a, of one midway between those of its fellow, as shown in Fig. 1, and also in such a manner that the ribs of each roller depress the covering of the opposite one from its normal condition. By this construction of the rollers, an elastic pressure is produced on the threads or yarns passingbetweeen them. To give the greatest possible degree of elasticity to this pressure, the ribs or feathers a, a, may be made of india-rubber tubing; but I do not confine myself to their construction of that material, as they might be of wood or even of metal.

The threads or yarns (which are represented in red color in Fig. l) pass between the sizing rollers C, C, and the dressing and polishing rollers D, D, then pass over a guide roller E, and are taken on spools in the manner common to dressing and polishing machinery; the rollers D, D, rotate respectively in the directions indicated by arrows in Fig. l, and by their friction upon the threads or yarns rub the size into them, take up all that is superfluous, and rub down the loose fibers, and polish the surface in a far superior manner to brushes.

The same rollers may be employed in the same manner for polishing braid, twine, or other small fabrics as well as threads and yarns.

What I claim as my invention, and desire to secure by Letters Patent, is

The construction of the dressing and polishing rollers with ribs o, a, covered with flannel, felt, or material of similar character, and arranged relatively to each other substantially as described, to produce elasticity of surface.

B. RICHARDSON. IVitnesses STEPHEN M. CROSBY, I. HAYDEN, Jr. 

